Searching the newsgroup archives, I have been unable to find the technical
distinction between LPV, LNAV/VNAV and LNAV+V approaches. I do not mean the
legal and procedural differences. I mean what are the technical differences
of the GPS that makes one more accurate than the other. In other words, is
there some extra GPS data on an LPV approach that makes it more accurate? Or
are they all just as accurate in terms of location precision and deviation.

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Wyatt Emmerich
President, Emmerich Newspapers
601-977-0470

PO Box 16709, Jackson MS 39236
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